394606562749 has 8 divisors (see below), whose sum is σ = 450999394560. Its totient is φ = 338218847376.

The previous prime is 394606562747. The next prime is 394606562773. The reversal of 394606562749 is 947265606493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394606562749 - 2¹ = 394606562747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394606562741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112389 + ... + 1423594.

It is an arithmetic number, because the mean of its divisors is an integer number (56374924320).

Almost surely, 2^394606562749 is an apocalyptic number.

It is an amenable number.

394606562749 is a deficient number, since it is larger than the sum of its proper divisors (56392831811).

394606562749 is a wasteful number, since it uses less digits than its factorization.

394606562749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558219.

The product of its (nonzero) digits is 58786560, while the sum is 61.

The spelling of 394606562749 in words is "three hundred ninety-four billion, six hundred six million, five hundred sixty-two thousand, seven hundred forty-nine".